Tim Luber (North Africa Research Group, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Williamson Building, Oxford Road, Manchester, M13 9 PL, United Kingdom.), Jonathan Redfern (North Africa Research Group, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Williamson Building, Oxford Road, Manchester, M13 9 PL, United Kingdom.), Luc Bulot (Aix-Marseille University CEREGE), Angel Arantegui (North Africa Research Group, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Williamson Building, Oxford Road, Manchester, M13 9 PL, United Kingdom.), Remi Charton (TU Delft), Giovanni Bertotti (Delft)